Yes another prob.!! my tube is 5 years old. my remedy is darn strange!
after initial boot and the "locked/ unlocked" window is flashing, I go play
about four games of "free cell" cards whilst holding in the EXIT button.
This seems to negate the disabling effect of the controller and then I can adjust the display to full screen etc. by the use of all the other buttons. It's a bit of a pain in the **** --- but it seems to work !!!!
A fair dinkun Aussie.
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sounds like a videocard problem, thermal issue with the GPU, and yes running it 24/7 will decrease the lifespan of the monitor. However getting 3 years life from a samsung CRT is a pretty good effort considering how often their picture tubes fail.
Symptom : No Image on the screen. I cannot turn on the monitor.
Checklist 1 : Is the power connected properly ?
Action : Check the power cord connection and supply.
Checklist 2 : Can you see "No Connection. Check Signal Cable" on the screen ?
Action : Check the signal cable connection.
Checklist 3 : If the power is on, reboot the computer to see the initial screen ( the login screen), which can be seen.
Action : * If the initial screen (the login screen appears, boot the computer in the applicable mode (the safe mode for Windows 98/95) and then change the frequency of the video card.
* Note : If the initial screen ( the login screen) does not appear, contact a service center or your dealer.
Sympton : I cannot see the ON Screen Display.
Checklist : Have you locked the On Screen Display (OSD) Menu to prevent changes ?
Action : Unlock the OSD by pressing the MENU button for atleast 10 seconds.
Even i was also having the same problem. We can unlock the control lock by holding the menu button for 10-20 seconds.... But now my problem is the message "Controls locked/" appears continuously. Screen width also reduced. If anyone know the solution for this please help. thanks in advance.